Legband becker



(No Model.)

L. BECKER.

COMPOUND JAGK. No. 314,560.

Patented Mar. 31, 1885.

UNITED STATES LEGRAND BECKER, OF

Parnnir @rricn.

RONDOUT, NE\V YORK.

COMPOUND JACK.

SPECIFICATION forming part of Letters Patent No. 314,560, dated March 31,1885.

Applieaiion filed Februiry 10, 1885.

(No model.)

To all whom it may concern.-

Be it known that I, LEGRAND BECKER, of Itondout, in the county of Ulster and State of New York, have invented a certain new and Improved Compound Jack, of which the following is a specification.

This invention relates to an improvement in compound screw-jacks; and it consists in the novel combination of a double screwjack with a lever and fulcrum, and is especially adapted for locomotive-works for taking out and putting in the springs of a locomotive. The i'ulcrum, being a screw, can thereby be adjusted to different positions, as may be required by difference in the equalizer to whichthey are to be fastened.

The method of using this invention for talcing out or putting in locomotive-springs is by passing the slotted endot the fulcrum over the equalizer of the locomotive and putting a pin through under it. The end of the lever that presses on the spring is notched to preventitfrom slipping ahead,and thejack-screw is then turned and the spring is pressed to its place. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a side view of two compound jacks embodying my improvement. One is in position for raising a spring and the other in position for lowering a spring. Fig. 2 is a top view of the same. Fig. 3 is a section view ofthe same.

Similar letters refer to similar parts throughout the several views.

In Fig. 1 the lever A is open at one end, as shown in Fig. 2, and two revolving nuts, E E, are pivoted into it. The pivots F F pass through the lever, as shown in Fig. 1. The end of the lever that is to lift or lower the spring S is notched, G, to prevent it from slipping. The screw H has a slotted head, B, to pass over the equalizer P of a locomotive, as shown in Fig. 1, and has holes X X for a pin, K, to pass through under the equalizer P, to receive the strain when the screw 0 or H is turned to lower or raise the spring S. The screw 0 is pointed at one end,and has a square head, N. The head is also pointed, so that the screw can be used either end. The pointis to keep it from slipping.

volving nuts E E with the pivots F F, and in Fig. 3 a sectional view of the screw H is illustrated, showing slotted end B over the equalizer P and the pin K under it. The screw H is pivoted into the slotted head B to turn, and is riveted, as shown at D, and has a square head to turn it by.

' Having thus described my invention, what I claim as new. and desire to secure by Letters Patent of the United States, is-

1. The lever A with slotted end and with the notched end G, all as shown and specified, and for the purposes set forth. I

2. The combination of revolving nuts E E with the pivoted ends F F.

8. The slotted head 13. having holes X X, and the pin K, in combination with the screw 0 and H, and the lever A with the notched end G, as described.

LEGRAND BECKER. W'itnesses:

JOHN F. Vorer, ALONZO PATCHIN.

In Fig. 2 the compound jack shows the re-' 

